SF6密度继电器表的使用状况分析

近年来由于GIS设备的增多,SF6密度继电器表由于结构缺陷、使用安装方式不正确等问题导致电力设备故障的事情时有发生。由于SF6密度继电器表的选配是由GIS厂家选定的,这就有可能导致部分有设计缺陷的SF6密度继电器表与厂家设备一起成批量的在电力系统设备上出现,并导致同类的电气故障发生。如何通过正确的检测方法确认并更换这些有缺陷的表计是必须重视的问题,近年来,江苏省通过对SF6密度继电器表的检测,虽然发现了许多存在问题,但是相关参考标准中却缺乏明确的判断依据,据此文中提出一些解决方法。

Analysis on the Use of SF6 Density Relay Table

The amount of GIS equipment increases in recent years. SF6 density relay table leads to the failure of electrical equipment due to its structural defects and the use of incorrect installation. Since the matching of SF6 density relay table is selected by GIS manufacturers, it may lead some SF6 density relay tables with design flaws to appear in bulk in the power system equipment together with manufacturers＇ equipment which leads similar electrical failure to occur. How to confirm and replace the defective meter with correct detection must be paid attention. Although many problems have been found by detecting in the province by recent years, the related reference standard lacks a clear judgment. Based on this situation, some solutions are proposed in this paper.